1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
/*
* src/nl-link-set.c Set link attributes
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation version 2.1
* of the License.
*
* Copyright (c) 2003-2010 Thomas Graf <tgraf@suug.ch>
*/
#include <netlink/cli/utils.h>
#include <netlink/cli/link.h>
static struct nl_sock *sock;
static int quiet = 0;
#if 0
" changes := [link LINK]\n"
" [master MASTER] [qdisc QDISC] [addr ADDR] [broadcast BRD]\n"
" [{ up | down }] [{ arp | noarp }] [{ promisc | nopromisc }]\n"
" [{ dynamic | nodynamic }] [{ multicast | nomulticast }]\n"
" [{ trailers | notrailers }] [{ allmulticast | noallmulticast }]\n");
#endif
static void print_usage(void)
{
printf(
"Usage: nl-link-set [OPTION]... [LINK]\n"
"\n"
"Options\n"
" -q, --quiet Do not print informal notifications\n"
" -h, --help Show this help\n"
" -v, --version Show versioning information\n"
"\n"
"Selecting the Link\n"
" -n, --name=NAME link name\n"
" -i, --index interface index\n"
"Change Options\n"
" --rename=NAME rename interface\n"
" --mtu=NUM MTU value\n"
" --txqlen=NUM TX queue length\n"
" --weight=NUM weight\n"
" --ifalias=NAME alias name (SNMP IfAlias)\n"
" --state=up/down set interface up/down\n"
);
exit(0);
}
static void set_cb(struct nl_object *obj, void *arg)
{
struct rtnl_link *link = nl_object_priv(obj);
struct rtnl_link *change = arg;
struct nl_dump_params params = {
.dp_type = NL_DUMP_LINE,
.dp_fd = stdout,
};
int err;
if ((err = rtnl_link_change(sock, link, change, 0)) < 0)
nl_cli_fatal(err, "Unable to change link: %s",
nl_geterror(err));
if (!quiet) {
printf("Changed ");
nl_object_dump(OBJ_CAST(link), ¶ms);
}
}
int main(int argc, char *argv[])
{
struct nl_cache *link_cache;
struct rtnl_link *link, *change;
int ok = 0;
sock = nl_cli_alloc_socket();
nl_cli_connect(sock, NETLINK_ROUTE);
link_cache = nl_cli_link_alloc_cache(sock);
link = nl_cli_link_alloc();
change = nl_cli_link_alloc();
for (;;) {
int c, optidx = 0;
enum {
ARG_RENAME = 257,
ARG_MTU = 258,
ARG_TXQLEN,
ARG_WEIGHT,
ARG_IFALIAS,
ARG_STATE,
};
static struct option long_opts[] = {
{ "quiet", 0, 0, 'q' },
{ "help", 0, 0, 'h' },
{ "version", 0, 0, 'v' },
{ "name", 1, 0, 'n' },
{ "index", 1, 0, 'i' },
{ "rename", 1, 0, ARG_RENAME },
{ "mtu", 1, 0, ARG_MTU },
{ "txqlen", 1, 0, ARG_TXQLEN },
{ "weight", 1, 0, ARG_WEIGHT },
{ "ifalias", 1, 0, ARG_IFALIAS },
{ "state", 1, 0, ARG_STATE },
{ 0, 0, 0, 0 }
};
c = getopt_long(argc, argv, "qhvn:i:", long_opts, &optidx);
if (c == -1)
break;
switch (c) {
case 'q': quiet = 1; break;
case 'h': print_usage(); break;
case 'v': nl_cli_print_version(); break;
case 'n': ok++; nl_cli_link_parse_name(link, optarg); break;
case 'i': ok++; nl_cli_link_parse_ifindex(link, optarg); break;
case ARG_RENAME: nl_cli_link_parse_name(change, optarg); break;
case ARG_MTU: nl_cli_link_parse_mtu(change, optarg); break;
case ARG_TXQLEN: nl_cli_link_parse_txqlen(change, optarg); break;
case ARG_WEIGHT: nl_cli_link_parse_weight(change, optarg); break;
case ARG_IFALIAS: nl_cli_link_parse_ifalias(change, optarg); break;
case ARG_STATE:
if(!strcmp(optarg, "up"))
rtnl_link_set_flags(change, IFF_UP);
else if(!strcmp(optarg, "down"))
rtnl_link_unset_flags(change, IFF_UP);
break;
}
}
if (!ok)
print_usage();
nl_cache_foreach_filter(link_cache, OBJ_CAST(link), set_cb, change);
return 0;
}
|
